Question

prove that √2 irrational no

Answer 1

just solve it by doing long division method you will find that it is non terminating and non repeating. And irrational are non terminating and non repeating. so,√2 is an irrational number.

Answer 2

because rational no. is put in the form of p/q or decimal representation but irrational no. can not be put in the form of p/q